Ann Armstrong
NPI 1528269420 · Addiction (Substance Use Disorder) Counselor · San Leandro, CA
Ann Armstrong is a Addiction (Substance Use Disorder) Counselor provider in San Leandro, CA (NPI 1528269420).
Provider details
- NPI number
- 1528269420
- Entity type
- Individual
- Primary specialty
- Addiction (Substance Use Disorder) CounselorBehavioral Health & Social Service Providers
- Sex
- Female
- Sole proprietor
- No
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 yrs in NPPES registry
- Profile completeness38% of score
83% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-05-29
- Last updated
- 2007-07-08
Frequently asked questions
- What is Ann Armstrong's NPI number?
- Ann Armstrong's National Provider Identifier (NPI) is 1528269420, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ann Armstrong's specialty?
- Ann Armstrong is listed in the NPPES registry with a primary specialty of Addiction (Substance Use Disorder) Counselor (Behavioral Health & Social Service Providers).
- Where is Ann Armstrong located?
- Ann Armstrong's practice location on file with NPPES is 1403 164th Ave, San Leandro, CA 94578-3123.
- What is Ann Armstrong's phone number?
- The practice phone number listed in the NPPES registry for Ann Armstrong is (510) 481-8645.
- Is Ann Armstrong's NPI active?
- Yes — Ann Armstrong's NPI (1528269420) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.